The former vice president has been critical of the Trump administration’s foreign policy moves. At a private gathering this year, Richard Cheney pressed Vice President Pence on a number of the administration’s foreign policy decisions, particularly the Trump administration’s isolationist stances.

Cheney has criticized the Trump administration’s hard line toward U.S. allies in NATO, a posture that he said “feeds this notion on the part of our allies overseas, especially in NATO, that we’re not long for that continued relationship,” The Post reported.

Nonetheless, Cheney and his daughter, the current chair of the House Republican Conference, are to appear at the fundraiser Monday for Trump Victory, a joint committee that raises money for Trump’s 2020 campaign and the RNC.